After upgrading my kernel from 2.6.30 to 2.6.32, I got a string of "Fatal DMA error" messages from the b43 driver after b43-fwcutter was installed/run. This package needs to be updated to a newer version (from git); also, it needs to be updated to download v478 or newer firmware if it detects a LP-PHY card (such as the 14e4:4315). The v410 firmware has been reported to cause "Fatal DMA error" messages (which in most cases lead to a lockup, as the original reporter described) on machines with neither Atom nor Core 2 ULV processors (on computers using Atom or Core 2 ULV CPUs, this message is due to a much more serious issue); in this case, a firmware upgrade is needed to fix the problem.
--Lucas
